Recently had dreaded po446 code a couple times on my 2001 GMC Jimmy 4x4, 2 door. I am a bit confused on where the evap canister is, I was told it is blocked by the garage I took it too. I noticed it is different then the 4 door blazer I have had in the past, just want to make sure. Thanks.

 

P0446 is a problem with the EVAP vent valve solenoid and or its circuits, not the canister. On your 01 2 door, the vent valve is located on the frame crossmember, just in front of the fuel tank. Follow the flow chart in this thread and it will take you to the problem: https://blazerforum.com/forum/diagno...plained-35143/

 

i feel your pain on the p0446 code, i have replaced all the lines,valves
charcole canister, and any thing else in line and still get the code,once and a while the light goes out,but comes right back on,keep us posted on your
solution...

 

I had a shop tell me the canister was bad or plugged which is what is causing the code. I do not know, I was trying to find out for sure basically, I see the tank wondering if the canister is right next to the tank tucked up behind the drivers rear tire.